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we had some issues with invisible indexes and MOS told us, that they don’t know anything about it.
After we have send them a link to your “Invisible ?” arcticle, they did some research and now we will get a patch for that problem.
That’s how it started…the rest is history ;-)

I don’t know who wrote “international recognized Oracle Expert”, but I feel guilty of mentioning your article.
Your quote “my posts are useful occasionally” might get you a nomination for the understatement of the year – of course they are!